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Safety Precautions and Warnings
Warning!
•
Always comply with local codes and requirements if disposal of failed components is
necessary (for example, CPU battery, capacitors, etc.).
•
Always ensure the use of an even and flat truck bed to transport the Perfect Harmony drive system.
Before unloading, be sure that the concrete pad is level for storage and permanent positioning.
•
Always confirm proper tonnage ratings of cranes, cables, and hooks when lifting the
drive system. Dropping the cabinet or lowering it too quickly could damage the unit.
•
Never disconnect control power while medium voltage is energized. This could cause
severe system overheating and/or damage.
•
Never store flammable material in, on, or near the drive enclosure. This includes
equipment drawings and manuals.
•
Never use fork trucks to lift cabinets that are not equipped with lifting tubes. Be sure
that the fork truck tines fit the lifting tubes properly and are the appropriate length.
•
During operation, the nominal weighted sound pressure level can possibly exceed 70 dB at a distance
of 1 meter from the drive.
ESD Sensitive Equipment!
•
Always be aware of electrostatic discharge (ESD) when working near or touching components inside
the Perfect Harmony cabinet. The printed circuit boards contain components that are sensitive to
static electricity. Handling and servicing of components that are sensitive to ESD should be done only
by qualified personnel and only after reading and understanding proper ESD techniques. The follow-
ing ESD guidelines should be followed. Following these rules can greatly reduce the possibility of
ESD damage to PC board components.
•
Always transport static sensitive equipment in antistatic bags.
•
Always use a soldering iron that has a grounded tip. Also, use either a metallic vacuum-style plunger
or copper braid when desoldering.
•
Make certain that anyone handling the Perfect Harmony printed circuit boards is wearing a properly
grounded static strap. The wrist strap should be connected to ground through a 1 megohm resistor.
Grounding kits are available commercially through most electronic wholesalers.
•
Static charge buildup can be removed from a conductive object by touching the object to a properly
grounded piece of metal.
•
When handling a PC board, always hold the card by its edges.
•
Do not slide printed circuit boards across any surface (e.g., a table or work bench). If possible, per-
form PCB maintenance at a workstation that has a conductive covering that is grounded through a 1
megohm resistor. If a conductive tabletop cover is unavailable, a clean steel or aluminum tabletop is
an excellent substitute.
•
Avoid plastic, Styrofoam™, vinyl and other non-conductive materials. They are excellent static gen-
erators and do not give up their charge easily.
•
When returning components to Siemens LD A, always use static-safe packing. This limits any fur-
ther component damage due to ESD.
Additional safety precautions and warnings appear throughout this manual. These important messages should be
followed to reduce the risk of personal injury or equipment damage.
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Perfect Harmony GENIII/e User's Manual
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A1A19000405A: Version 1.3
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